Random Acts of Music features members of the Pasadena Symphony and POPS in a holiday-inspired performance at 1 p.m. Sunday and Dec. 18 at One Colorado, 41 Hugus Alley, Pasadena. Free. Call (626) 564-1066 or visit onecolorado.com.

HISTORICAL FUN

A free holiday open house at the Pasadena Museum of History, 470 W. Colorado Blvd., Pasadena includes festive music performed on 16th-century instruments by Ad Hoc Consort, refreshments, a family craft session, tours of the Finnish Folk Art Museum and fine art in the galleries from 1 to 4 p.m. Sunday. Call (626) 577-1660 or visit pasadenahistory.org.